Definition: You are given a question on marketing. You are also given 4 answer options (associated with "A", "B", "C", "D"), out of which only one is correct. You need to answer the question by selecting the correct option. You should only answer with the choice letter, not the whole answer.
Input:  Providing free samples of perfumes (scent) in magazines is an example of which of the following?
(A)Classical conditioning. (B)Operant conditioning. (C)Social learning. (D)Behavioural learning.

A